Sylvania



(No Model.)

J. D. WILLIAMS 8a G. P. RAIDABAUGII. ROLLS FOR REWORKING OLD RAILS.

No. 341,530. Pateqted May 11, 1886.

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UNITED STATES PATENT OFFICEO JOHN D. WILLIAMS AND GEORGE P. RAIDABAUGH, OF DANVILLE, PENN- SYLVANIA, ASSIGNOBS OF ONE-HALF TO GROVE, GRIER & CO., (LIM- ITED,) OF SAME PLACE.

ROLLS FOR REWORKING OLD RAILS.

SPECIFICATION' forming part of Letters Patent N0. 341,530, dated May 11, 1886.

Application tiled September 28, 1885. Serial No. 178,473. (No model.)

T0 a/Zl whom, it may concern-.-

Be it known that we, JOHN D. WILLIAMS and GEORGE P. RAIDABAUGH, of Danville, Monteur county, Pennsylvania, have invented a Set of Rolls for Transforming Old .Steel Rails and Stub-Ends into Flat Strips or Plates,

`of which the following is a specification.

Our improvement in rolls relates to a peculiar set of grooves or passes which are especially adapted to the reduction of old Bessemer steel rails and stub-ends, the reduction of which to fiat strips or plates by any of the forms of I'olls heretofore made use of is very diflicult.

Our rolls are like the rolls ordinarily used, except in the form of their grooves, which are so designed as to perform by progressive steps the operations of gradually compressing and offsetting one side of the head and one side of the foot of the rail, so that the web, instead of being united to the center of the head and to the center of the foot, is transplaced into a of the head and one edge of the foot. The forms of these grooves will be best understood by reference to the accompanying drawing, in Which- A is the upper Ioll, and B the lower roll; a and b, collars, respectively, of upper and lower rolls; l 2 3 4 5, successive reducingpasses; 6, iinalor boar pass between cylindri` cal surfaces. The forms of the grooves are such that the rail being entered with its web horizont-al the upper sides of the head and of the foot as it lies in the rolls are reduced more than the under until,in the third pass,this upper side of both foot and head have entirely disappeared,having been forced into the Wings or sides of a channel-bar.

The rail before entering pass l is of the T shape in common use. Pass l shows the form that it takes after going through this groove. rlhe rail is then passed successively through the second, third, fourth, and iifth grooves, which gradually squeeze the metal out laterally with but little extension. The rail, now in the form of a channel-bar, is run through a box-pass,which opens out the sides or wings of the channel-bar to one plane surface with at the same time sufcient compression to make the result-ing strip of uniformrthickness. Fur ther reduction,'if required, can be effected by passing the strip through cylindrical rolls. These forms of grooves are designed to effect a iiow of mctal,under pressure,in the direction necessary to obtain a flat plate Without any overlapping of different portions of the metal upon each other; consequently the plate produced by the reduction of Old rails in our rolls has none of the seams or ssures which are produced by such overlapping, because, particularly in the case of Bessemer steel, the parts do not weld.

Another very important advantage in the use of our rolls is that by their use wider plates can be made than are obtainable by the ordinary modes of reworking old rails.

Bessemer steel whenv rolled in the ordinary way having a tendency to extend itself far more in the direction of the length ofthe bar than to spread laterally, we obtain the required width because in our rolling operation we preserve,so far as possible,the entire width of t-he foot and head upon one side of the web preparatory to finally bending these sides of the foot and head into the plane ofthe web.

In the drawing we have` shown the grooves of the upper roll of less depth than the under; but these rolls may be reversed in position, and the forms of the grooves may vary slightly, so that their form is such as to force the metal out laterally, and then open out the.

channel-bar thus formed into a flat plate. The number of passes may also be increased. Having now fully described our invention, what we claim, and desire to secure by Letters Patent, is

A pair of rolls for reworking old rails and stub-ends into plates, the said rolls having passes of the shapes designated 1 to 6, substantially as shown. ,y

In witness whereof we have hereunto set our hands. .y

` JOHN D. VILLIAHS.

GEORGE P. RAIDABAUGH. W'itnesses ROBERT ADAMS, L. K. ItIsHEL. 

